In 1893, the Amlingmeyer boys venture forth from the west in response to a summons from Otto's (Big Red) publisher - they are to come to Chicago immediately, to the World's Columbian Exposition, and compete with some of the most famous detectives in the world.
In 1893, down-on-their-luck cowboys and wannabe detectives Big Red and Old Red Amlingmeyer receive an urgent summons. The brothers are to come to the World's Columbian Exposition - the world's fair being held that year in Chicago. McClure's Magazine is about to reveal the truth...